I can confirm that this is a 0G achievement.
Basically once you have got 44 achievements this will be your 45th abievement.
Like the PS3 when you get all bronze, silver and gold trophies you then get a platinum trophy, this is just like that except its a 0G achievement.
The only daunting achievement on here you might THINK to be, is completing the game on hard with all A rank and S rank for all chapters.
The above 2 achievements really REALLY easy.
Once you have gotten the 'Oblitereration' gauge death is a certain rarity.
You will die more times using the 'Mortal' gauge.